Abstract
Thirty one photosynthetic pigments (chlorophylls, carotenoids and degradation products) from the seaweeds, Codium dwarkense, (Chlorophyta), , Laurencia obtusa , (Rhodophyta) and , Lobophora variegata , (Phaeophyta), were separated in a single-step procedure by reversed phase high-performance liquid chromatography. An elution gradient of methanol, acetone and ammonium acetate solution, and a program time of 65 min, was used to obtain high resolution peaks. Eighteen photosynthetic pigments were separated from C. dwarkense , sixteen from L. obtusa and fourteen from L. variegata . Chlorophyll b , micronone, microxanthin, neoxanthin, siphonein and siphonoxanthin were the most typical and characteristic pigments of C. dwarkense , while chlorophyll c1, c2 , fucoxanthin, fucoxanthol, flavoxanthin, diatoxanthin were the most typical pigments in L. variegata . In L. obtusa , chlorophyll d , α-cryptoxanthin, β-cryptoxanthin and fucoxanthin were the most abundant pigments. KEY WORDS: Codium dwarkense, Laurencia obtuse, Lobophora variegata, Chlorophylls, Carotenoids, HPLC Egyptian Journal of Biology Vol.4 2002: 1-6
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